Falling Tiles at an On-going Construction Site, Harmony Public School Houston, Texas.
An almost completed exterior wall tiling of one of a new public School building was put on hold due to falling of some tiles from the wall. C3S, Inc. (C3S) was contracted to determine the probable cause(s) of the problem. A representative of C3S visited the site and interviewed masons working on the building. Three different cementitious materials being used were submitted for evaluation. A few potential sources likely to cause the problem were pointed out including a cementitious product with relatively high admixture content and high air content.